Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Jeihoon Baek"'
Autor:
Ahmed H. Okilly, Seungdeog Choi, Sangshin Kwak, Namhun Kim, Jonghyuk Lee, Hyoungjun Moon, Jeihoon Baek
Publikováno v:
Machines, Vol 11, Iss 11, p 990 (2023)
During the last few decades, insulated-gate bipolar transistor (IGBT) power modules have evolved as reliable and useful electronic parts due to the increasing relevance of power inverters in power infrastructure, reliability enhancement, and long-lif
Externí odkaz:
https://doaj.org/article/dea99467cea74b6f957b505eb0ac2c36
Autor:
Moinul Shahidul Haque, Md Moniruzzaman, Seungdeog Choi, Sangshin Kwak, Ahmed H. Okilly, Jeihoon Baek
Publikováno v:
Sensors, Vol 23, Iss 9, p 4395 (2023)
This paper proposes a novel, degradation-sensitive, adaptive SST controller for cascode GaN-FETs. Unlike in traditional transformers, a semiconductor switch’s degradation and failure can compromise its robustness and integrity. It is vital to conti
Externí odkaz:
https://doaj.org/article/7ec182f3801b4d0da9ddd50c60cb299b
Publikováno v:
Energies, Vol 16, Iss 1, p 526 (2023)
Power system disruptions can be categorized as issues with the quality of electricity brought on by voltage sags, lightning strikes, and other system-related interferences. The static transfer switch (STS) has recently emerged as the most important t
Externí odkaz:
https://doaj.org/article/9dafac1168114322a062fd37b1e4db07
Publikováno v:
Energies, Vol 15, Iss 9, p 3122 (2022)
This paper proposes a method to improve the output torque of a six-phase permanent-magnet synchronous machine (PMSM) within the same current peak limit through a fifth-harmonic injection into each phase current of the stator. Compared to the fifth +
Externí odkaz:
https://doaj.org/article/e29fd20411014f3aaaddecbeb0ad513b
Publikováno v:
Applied Sciences, Vol 11, Iss 18, p 8508 (2021)
A six-phase motor with a high degree of freedom can be converted into a three-phase motor in order to be used in a traction system. In addition, when phase-change technology is applied, it is possible to establish an efficient control strategy tailor
Externí odkaz:
https://doaj.org/article/fa3b36e7254a40f4bfa6a29720d203a7
Autor:
Ahmed H. Okilly, Jeihoon Baek
Publikováno v:
Applied Sciences, Vol 11, Iss 17, p 7911 (2021)
The spread of the 5G technology in the telecom power applications increased the need to supply high power density with higher efficiency and higher power factor. Thus, in this paper, the performance of the different power factor correction ( PFC ) to
Externí odkaz:
https://doaj.org/article/bf8919c8e22e47d492437fc47ba95871
Autor:
Md. Zakirul Islam, Seungdeog Choi, Malik E. Elbuluk, Sai Sudheer Reddy Bonthu, Akm Arafat, Jeihoon Baek
Publikováno v:
Applied Sciences, Vol 11, Iss 7, p 3102 (2021)
The rare-earth (RE) permanent magnets (PM) have been increasingly adopted in traction motor application. However, the RE PM is expensive, less abundant, and has cost uncertainties due to limited market suppliers. This paper presents a new design of a
Externí odkaz:
https://doaj.org/article/39dbf396d0014285af4c00f7a5008d15
Publikováno v:
Applied Sciences, Vol 11, Iss 2, p 539 (2021)
This paper presents an optimal design for the inner current-control loop of the continuous current conduction mode (CCM) power factor correction (PFC) stage, which can be used as the front stage of the two-stage AC/DC telecom power supply. The conven
Externí odkaz:
https://doaj.org/article/87d68b30fd8a49da8f1f7ef088b315c0
Autor:
Hojin Jeong, Jeihoon Baek
Publikováno v:
Applied Sciences, Vol 10, Iss 24, p 8785 (2020)
Air conditioning system of electric vehicles has new change as the internal combustion engine is being replaced with electrified AC motor. With large amount of batteries installed at the bottom of frame, the conventional compressor, which is belt-dri
Externí odkaz:
https://doaj.org/article/a10d854dd457400295d48e623d8076b3
Publikováno v:
Energies, Vol 13, Iss 17, p 4301 (2020)
This paper presents a complete mathematical design of the main components of 2 kW, 54 direct current (DC)–DC converter stage, which can be used as the second stage of the two stages of alternating current (AC)–DC telecom power supply. In this pap
Externí odkaz:
https://doaj.org/article/63ba06231f4a47919faa75ab4d1d9e78